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Alfheim Lighting Engine project artwork

CurseForge · Minecraft mod

Alfheim Lighting Engine

Alfheim is a lighting engine replacement for Minecraft, optimized for performance and fixing many bugs

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Alfheim Lighting Engine release should I use?

Updated 1 year ago
Latest stable file Alfheim 1.6
Game version 1.12.2
Loader Forge

Alfheim Lighting Engine Alfheim 1.6 targets 1.12.2 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 2 required mods have matching files.

Where it goes

Is Alfheim Lighting Engine required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

What else does Alfheim Lighting Engine Alfheim 1.6 need?

Alfheim 1.6. Change the file and its required mods may change too.

All 2 required mods have matching files

Install Red Core, MixinBooter first. We found matching files for this game-version and loader setup.

Red Core Needed by Alfheim Lighting Engine Alfheim 1.6
required
Matching file found Matched file: Red Core 1.8-1.12 0.7.1
MixinBooter Needed by Alfheim Lighting Engine Alfheim 1.6
required
Matching file found Matched file: MixinBooter 11.15
Dynamic Lights Optional for Alfheim Lighting Engine Alfheim 1.6
optional
Matching file found Matched file: Dynamic Lights

We only count dependency files that match this setup. A file for another loader does not fill the gap.

Before you install it

Add Alfheim Lighting Engine without breaking your instance.

Built for Alfheim Lighting Engine Alfheim 1.6. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use Alfheim 1.6. It targets 1.12.2 with Forge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    Install Red Core, MixinBooter first. We found matching files for this game-version and loader setup.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside Alfheim 1.6. It opens that exact file at the source.

About this project

What does Alfheim Lighting Engine add?

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Alfheim

Alfheim is a fork (or a rewrite depending on your views on the ship of Theseus) of Hesperus which is a fork of Phosphor

What benefit does this have over Phosphor/Hesperus?

Alfheim aims to be compatible in all scenarios, and if for any reasons a something is fundamentally incompatible, a warning will tell you what is happening instead of crashing with hardly any information.

Alfheim also has a lot of optimizations of all sizes over Phosphor/Hesperus it uses slightly less memory overall.

Alfheim also improves client side performance unlike Phosphor/Hesperus, by reducing by lighting related block updates by a factor of 27. To improve client side performance, Alfheim also limits how much lighting updates are performed each frame. In addition, Phosphor/Hesperus unnecessarily forces lights to be updates before each frame which Alfheim doesn't.

Alfheim also fixes more vanilla lighting issues than Phosphor/Hesperus, here is a list of all fixes and where they come from:

Fixed in Phosphor/Hesperus:

Fixed in Alfheim:

Why not just PR to Hesperus?

Fair question, the reason is simple, Alfheim compared to Hesperus isn't just a fork to fix bugs, it is my continuation of it. And as seen in the past, my continuations of mods aren't just modifying some things, they are pretty invasive and basically change everything internally.

It wasn't this way at first, I wanted to PR some stuff to Hesperus but after doing parts of it, it became clear that it had grown bigger than a PR. So then I decided to do Alfheim, for now it includes optimizations, bug fixes and compatibility fixes, but later down the line I have more plans.


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Project description from CurseForge.

Pick your setup

Alfheim Lighting Engine by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Alfheim Lighting Engine versions and loaders

11 of 11 releases match

Looking for an older file? The official CurseForge project page is in Resources.